Handle no alarm in nojs page

ui/nojs.go

@@ -30,11 +30,20 @@ func DeclareNoJSRoutes(router *gin.Engine, cfg *config.Config, db *reveil.LevelD
 			return
 		}
 
+		if alarm == nil {
+			c.HTML(http.StatusOK, "index.tmpl", gin.H{
+				"noAlarm":   true,
+				"isPlaying": player.CommonPlayer != nil,
+			})
+			return
+		}
+
 		nCycles := int(time.Until(*alarm) / (90 * time.Minute))
 		nDays := int(time.Until(*alarm) / (24 * time.Hour))
 		nMinutes := int((time.Until(*alarm) / time.Minute) % 90)
 
 		c.HTML(http.StatusOK, "index.tmpl", gin.H{
+			"noAlarm":       false,
 			"nextAlarmDate": alarm.Format("Mon 2"),
 			"nextAlarmTime": alarm.Format("15:04"),
 			"sameDay":       time.Now().Day() == alarm.Day(),

ui/nojs_templates/index.tmpl

@@ -1,5 +1,8 @@
 <h1 style="margin-bottom: 0">
   Prochain réveil le&nbsp;:
+  {{ if .noAlarm}}
+  aucun défini
+  {{ else }}
   {{ if .sameDay }}
   aujourd'hui
   {{ else if lt .nCycles 16 }}
@@ -8,18 +11,23 @@
   {{ .nextAlarmDate }}
   {{ end }}
   à {{ .nextAlarmTime }}
+  {{ end }}
 </h1>
+{{ if not .noAlarm }}
 <h2 style="color: gray; margin-top: 0; margin-left: 5em">
   {{ if gt .nDays 2 }}(dans {{ .nDays }} jours){{ else }}(dans {{ .nCycles }} cycles + {{ .nMinutes }} min){{ end }}
 </h2>
+{{ end }}
 
 <div style="display: flex; gap: 10px;">
+  {{ if not .noAlarm }}
   <form method="post" action="/nojs.html">
     <input type="hidden" name="action" value="cancel">
     <button type="submit">
       Annuler la prochaine alarme
     </button>
   </form>
+  {{ end }}
 
 {{ if .isPlaying }}
   <form method="post" action="/nojs.html">